[alternative-merged] frv-use-set_current_blocked-and-block_sigmask.patch removed from -mm tree

[akpm@xxxxxxxxxxxxxxxxxxxx]

The patch titled
     Subject: frv: use set_current_blocked() and block_sigmask()
has been removed from the -mm tree.  Its filename was
     frv-use-set_current_blocked-and-block_sigmask.patch

This patch was dropped because an alternative patch was merged

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
From: Matt Fleming <matt.fleming@xxxxxxxxx>
Subject: frv: use set_current_blocked() and block_sigmask()

As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block is
pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f28f
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate code
across architectures.  In the past some architectures got this code wrong,
so using this helper function should stop that from happening again.

Acked-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Acked-by: David Howells <dhowells@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 arch/frv/kernel/signal.c |   32 ++++++++++----------------------
 1 file changed, 10 insertions(+), 22 deletions(-)

diff -puN arch/frv/kernel/signal.c~frv-use-set_current_blocked-and-block_sigmask arch/frv/kernel/signal.c
--- a/arch/frv/kernel/signal.c~frv-use-set_current_blocked-and-block_sigmask
+++ a/arch/frv/kernel/signal.c
@@ -40,12 +40,13 @@ struct fdpic_func_descriptor {
  */
 asmlinkage int sys_sigsuspend(int history0, int history1, old_sigset_t mask)
 {
-	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
+	sigset_t blocked;
+
 	current->saved_sigmask = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+
+	mask &= _BLOCKABLE;
+	siginitset(&blocked, mask);
+	set_current_blocked(&blocked);
 
 	current->state = TASK_INTERRUPTIBLE;
 	schedule();
@@ -158,10 +159,7 @@ asmlinkage int sys_sigreturn(void)
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&set);
 
 	if (restore_sigcontext(&frame->sc, &gr8))
 		goto badframe;
@@ -184,10 +182,7 @@ asmlinkage int sys_rt_sigreturn(void)
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
+	set_current_blocked(&set);
 
 	if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
 		goto badframe;
@@ -474,15 +469,8 @@ static int handle_signal(unsigned long s
 	else
 		ret = setup_frame(sig, ka, oldset);
 
-	if (ret == 0) {
-		spin_lock_irq(&current->sighand->siglock);
-		sigorsets(&current->blocked, &current->blocked,
-			  &ka->sa.sa_mask);
-		if (!(ka->sa.sa_flags & SA_NODEFER))
-			sigaddset(&current->blocked, sig);
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
-	}
+	if (ret == 0)
+		block_sigmask(ka, sig);
 
 	return ret;
 
_

Patches currently in -mm which might be from matt.fleming@xxxxxxxxx are

linux-next.patch
parisc-use-set_current_blocked-and-block_sigmask.patch

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